The more energy moves through a system, the more _____ it becomes.

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Presentation on theme: "The more energy moves through a system, the more _____ it becomes."— Presentation transcript:

1 The more energy moves through a system, the more _____ it becomes.Daily Question 9/26/12The more energy moves through a system, the more _____ it becomes.

2 Ecology NotesEcology is the study of the complex relationships between living things and their nonliving environment.

3 The largest ecosystem is the entire biosphere.A community of organisms and the abiotic environment that the organisms inhabit is called an ecosystem.An ecosystem may be as large as an ocean or as small as a drop of water.The largest ecosystem is the entire biosphere.

4 Most of Earth’s ecosystems contain a variety of plants and animals.Plants are important parts of ecosystems because they use energy from the sun to produce their own food.What is this process known as?

5 Organisms that make their own food are called producers.Producers include most plants and some bacteria.

6 Consumers are organisms that get their energy by eating other organisms.

7 Consumers may eat producers or other consumers.However, some consumers get their energy by breaking down dead organisms, these consumers are known as decomposers.

8 In order for an ecosystem to remain healthy and stable it must have a balance of producers, consumers, and decomposers.

9 Ecosystems have a limited amount of energy in them.Think of your refrigerator at home.If you have enough food to last your family for an entire week, but someone eats all of it the first day. What’s going to happen?

10 The largest population that an environment can support at any given time is called the carrying capacity.The carrying capacity depends on the available resources for that environment.If every student in this room gets one hamburger. Do I have enough?What does that tell you about the carrying capacity of this room?

11 A given ecosystem can support only the number of organisms that allows matter and energy to be transferred efficiently through the ecosystem.

12 One change in any part of an ecosystem may affect the entire system.What affects may a forest fire have on an ecosystem? Other than burning “stuff.”

13 After certain disasters, organisms will naturally migrate back into an area in predictable patterns.

14 As energy moves through an ecosystem it is lost the more it travels.The further up you move, the less energy there is available.

15 The sequence in which organisms consume other organisms can be represented by a food chain.

16 A food web, is used to represent the relationship between multiple food chains.

17 Human beings have a tendency to alter most ecosystems to better fit their needs or wants.When humans convert large natural areas into inhabitable environments for them, most of those ecosystems are destroyed.

33 The _____ includes all the rock and soil on the surface of the continents and the ocean floor.Geosphere

34 Once organic matter _____ it becomes a part of the other 3 spheres.Decomposes

35 1st Law of Thermodynamics Energy is transferred between systems, but cannot be _____ or _____.Created or destroyed

36 2nd Law of Thermodynamics When energy transfer takes place; matter becomes less _____ with time.Organized

37 The heat in Earth’s interior cause’s material to rise toward the surface, as the material cools; it becomes denser and begins to sink back into the interior. This is known as a _____ current.Convection

51 Describe the size and shape of Earth.Earth is an oblate, or slightly flattened spheroid.

52 Describe 2 characteristics that make Earth unique in our solar system.Earth is covered in mostly water.Earth has a thick atmosphere containing high amounts of oxygen.Earth has known living organisms.

53 How do scientists learn about Earth’s interior?Scientists observe how seismic waves travel through Earth’s interior to determine the physical states of Earth’s deeper regions.

54 What is a possible source of Earth’s magnetic energy?The motion of the liquid iron of Earth’s outer core may produce electric currents, which generate Earth’s magnetic field.

55 How does the asthenosphere differ from the mesosphere?The asthenosphere is solid rock that is able to flow because of its plasticity.The mesosphere is solid rock that remains rigid and doesn’t flow.

56 Explain how the Earth can be considered a system.Because it consists of many interacting components.

57 Compare an open system and a closed system.In an open system, matter and energy are added and removed.In a closed system, only energy enters or leaves.

58 How do scientists learn about Earth’s interior?Scientists observe how seismic waves travel through Earth’s interior to determine the physical states of Earth’s deeper regions.

59 Name the two main sources of Earth’s energy.The sun and Earth’s interior.

60 What affect, if any, would you expect a massive forest fire to have on the amount of carbon dioxide in the atmosphere? Explain.It would add carbon dioxide to the atmosphere, because when organisms such as trees burn, CO2, is released.

61 Open, because matter and energy are being exchanged.Earth has been hit by meteorites in the past. Is Earth an open or closed system, explain.Open, because matter and energy are being exchanged.

62 Define ecosystem.A community of organisms and the environment that the organisms inhabit.

63 Identify 3 factors that control the balance of an ecosystem.How matter and energy cycle through the ecosystemHow ecosystems respond to changeHow organisms in the ecosystem interact

64 Describe one way that ecosystems respond to environmental change.Ecosystems generally respond to change in a way that restores balance within the ecosystem.

65 Compare a food chain with a food web.A food chain is a sequence in which an organism is consumed by another organism.In a food web, several organisms feed upon one type of organism, which are consumed by still other organisms that compete with each other.

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